Error handling not working properly when upgrading lib

[4integration]

Hi,

I am testing passport-openidconnect with an example app based on this https://github.com/ForgeRock/exampleOAuth2Clients/tree/master/node-passport-openidconnect

Since it is a bit dated I have updated all libs. But when updating passport-openidconnect from 0.0.2 to 0.1.2 the error handling stops working.

I have a error case when client_id is missing in Audience and with ver 0.0.2 I get a proper error handling with error page showing
aud parameter does not include this client - is: urn:myorg:user-store:test-application| expected: my-test-client

When updating the lib to ver 0.1.2 (only that change) I get
Not Found 404, NotFoundError: Not Found i.e. cannot load the error page

Do you have any idea why it fails?